基于Blackfin的动态电源管理技术

Dynamic power management technology on Blackfin processor

针对在嵌入式系统开发中需要在提高性能和降低功耗之间找到平衡点的问题,以Blackfin固有的动态电源管理技术为基础,通过对工作电压和工作频率的调整,实现了性能和功耗指标的平衡,并通过一个语音信号滤波实时任务对此进行了验证。实验结果表明,动态电源管理技术在不降低整体性能的情况下,针对不同的处理任务设定相应的工作电压和频率,可以有效地降低功耗,为Blackfin的低功耗设计提供了参考。

Aiming at the tradeoff between improving the performance and reducing the power consumption in the embedded system design,the dynamic power management technique in Blackfin processor was introduced,and a real-time task of audio signal filter was designed as the example of realization.The result shows that this technique can reduce the power consumption to a great extent without compromising the performance,which provides a reference for the low power Blackfin system design.